Grain Booklouse vs Frosted Pine Aphid

Side-by-side species comparison

Attribute Grain Booklouse Frosted Pine Aphid
Scientific Name Liposcelis bostrychophila Cinara pilicornis
Order Psocoptera Hemiptera
Family Liposcelididae Aphididae
Size 0.7-1.2 mm 3-5 mm
Habitat Gardens Farmland
Diet Fungus Feeders Fungus Feeders
Regions Worldwide Europe, introduced to other temperate regions
Conservation Least Concern Least Concern

Grain Booklouse

A tiny wingless booklouse that is one of the most common stored-product pests worldwide. It thrives in warm humid environments with starchy materials.

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Did You Know?

It reproduces by parthenogenesis, meaning populations consist entirely of females.

Frosted Pine Aphid

A large brown aphid covered in waxy powder that forms colonies on spruce twigs. It produces copious honeydew that supports sooty mold growth on needles.

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Did You Know?

Beekeepers value it because its honeydew production enables bees to make prized forest honey.